ICS9159-06 Datasheet, PDF (6/7 Pages) Integrated Circuit Systems – Frequency Generator and Buffer for Pentium Systems

ICS9159-06
Preliminary Product Preview
Electrical Characteristics at 5.5V
V_DD = 4.5 – 5.5 V, T_A = 0 – 70° C
AC Characteristics
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
Rise Time¹
Tr1
20pF load, 0.8 to 2.0V, CPU & BUS
-
0.55
0.95
Fall Time¹
Tf1
20pF load, 2.0 to 0.8V, CPU & BUS
-
0.52
0.90
Rise Time¹
Tr2
20pF load, 20% to 80%, CPU & BUS
-
1.2
2.1
Fall Time¹
Tf2
20pF load, 80% to 20%, CPU & BUS
-
1.1
2.0
Duty Cycle¹
Dt1
20pF load; @VOUT=1.4V
50
56
70
Duty Cycle¹
Jitter, One Sigma¹
Jitter, Absolute¹
Jitter, One Sigma¹
Jitter, Absolute¹
Input Frequency¹
Dt2
20pF load; @VOUT=50%
Tj1s
CPU; ECPU
Load=20pF; FOUT > 25 MHz
Tjab
CPU; ECPU
Load=20pF, FOUT > 25 MHz
BUS(0:2); REF(0:3);
Tj1s
CPU≥25 MHz; Load=20pF; Comp. to
the period
BUS(0:2); REF(0:3);
Tjab
CPU≥25 MHz; Load=20pF;
Comp. to the period
Fi
40
50
60
-
60
150
-350
-
350
-
0.7
2.0
-3.0
-
3.0
0.5
14.318
20
Logic Input Capacitance¹
CIN
Logic input pins
-
5
-
Crystal Oscillator Capacitance¹
Power-on Time¹
Frequency Settling Time¹
Clock Skew Window¹
Clock Skew Window¹
Clock Skew Window¹
CINX
X1, X2 pins
ton
From VDD=1.6V to 1st crossing of
50.0 MHz V supply ramp < 40ms
DD
ts
From 1 st crossing of acquisition to
< 1% settling
Tsk1
CPU to CPU;
Load=20pF; @1.4V
Tsk2
BUS to BUS and REF to REF;
Load=20pF; @1.4V
Tsk3
ECPU to CPU(0:2);
Load=20pF; @1.4V
-
8
-
-
2.5
4.5
-
2.0
4.0
-
150
250
-
300
500
3.0
5.0
6.0
Note 1: Parameter is guaranteed by design and characterization. Not 100% tested in production.
UNITS
ns
ns
ns
ns
%
%
ps
ps
%
%
MHz
pF
pF
ms
ms
ps
ps
ns
6